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2.
A pack of cigarettes or cigars where some, or all off the contents have been bent, split, or otherwise made unsmokeable. This usually occurs while drunk, and sleeping in your pants.
"Can i bum a smoke?"
"nah man, this is a straight up drunk pack"
by king jeezy August 22, 2006
 
1.
A backpack stuffed with couch pillows (or other large, soft items) worn by overly-intoxicated individuals to ensure the prevention of inhaling vomit while passed out. This pack is generally applied by the user's less-drunk, responsible peers.
"Damnit! Taylor is wasted, don't you think he might inhale his vomit and die while passed out?"

"No man, let's just put the drunk pack on him"
by iGoHam April 18, 2010